An oil pressure-based brake body, a handle and a brake device thereof

Abstract

This utility model discloses a hydraulic brake body, a grip and a braking device thereof, including a brake body (2), the brake body (2) including a left brake (22) and a right brake (21), both the left brake (22) and the right brake (21) are fixed with brake pads (27) by brake pad fixing bolts (26), the left brake (22) and the right brake (21) are hinged to each other; the left brake (22) is provided with a brake cylinder (220), the brake cylinder (220) is provided with a brake piston rod (224) with a brake piston (223), the upper end of the brake piston rod (224) is hinged to the right brake (21); the brake cylinder (220) is provided with an oil port.

Description

Technical Field

[0001] This utility model relates to the field of brakes, and more specifically, to a brake body, grip and braking device based on hydraulic pressure. Background Technology

[0002] Brakes are the most critical control mechanism on bicycles or electric bicycles. Nowadays, bicycles (or electric bicycles) generally use rim brakes (C-type brakes) or disc brakes.

[0003] Disc brakes have the advantage of good braking performance, but they are complex in structure, heavy, and expensive, which goes against the current trend of lightweight bicycle modification (lightweighting can improve performance).

[0004] The advantage of rim brakes lies in their lightweight and simple structure, but they generally use a cable structure. The cable is usually made of metal wire, which may rust after long-term use, which is not conducive to the braking feel. In the case of severe corrosion, the brake lever cannot be squeezed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an anti-fogging and anti-interference endoscope, which aims to improve the problems mentioned in the background art.

[0006] This utility model is implemented as follows:

[0007] A hydraulically based C-type brake body includes a brake body comprising a left brake and a right brake. Both the left and right brakes are secured with brake pads by brake pad fixing bolts and are hinged to each other. The left brake is provided with a brake cylinder, and a brake piston rod with a brake piston is provided inside the brake cylinder. The upper end of the brake piston rod is hinged to the right brake. The brake cylinder is provided with an oil port.

[0008] As an improvement to the hydraulic C-type brake body described in this utility model, the rightmost end point of the left brake is hinged to the leftmost end point of the right brake; an extension section is provided to the left of the leftmost hinge point of the right brake; and the upper end of the brake piston rod is hinged to the extension section of the right brake.

[0009] As a further improvement to the hydraulic C-type brake body described in this utility model, the upper end of the brake piston rod is hinged to the extension section via a brake hinge shaft; the brake piston rod is fixedly connected to the brake hinge shaft.

[0010] As a further improvement to the hydraulic C-type brake body described in this utility model, the brake piston rod and the brake hinge shaft are fixedly connected by threads; an adjusting bolt is provided at the upper end of the brake piston rod after passing through the brake hinge shaft.

[0011] As a further improvement to the C-type brake body based on hydraulic pressure described in this utility model, an oil inlet bolt is provided on the oil port of the brake cylinder.

[0012] As a further improvement to the hydraulic C-type brake body described in this utility model, a gourd head is provided on the oil inlet bolt.

[0013] As a further improvement to the hydraulic C-type brake body described in this utility model, the left brake and the right brake are hinged by a fixing bolt; the threaded section of the fixing bolt is a frame retainer.

[0014] As a further improvement to the hydraulic C-type brake body described in this utility model, an elastic body II is provided between the left brake and the right brake.

[0015] A C-type brake grip based on hydraulic pressure includes a grip, the grip including a brake lever and a handlebar fixing member, a handlebar cylinder is provided between the brake lever and the handlebar fixing member; the rightmost end of the brake lever is hinged to the handlebar cylinder; a handlebar piston is provided inside the handlebar cylinder, and a handlebar piston rod is provided at the upper end of the handlebar piston and hinged to the brake lever; the handlebar cylinder is provided with oil inlet and outlet ports.

[0016] As an improvement to the hydraulic C-type brake grip described in this utility model, the hand piston rod and the handle piston are connected by a universal joint mechanism; an elastic body is provided at the lower end of the handle piston.

[0017] A hydraulic C-type braking device includes a brake body and a handle; the oil port of the brake body is connected to the oil inlet and outlet via an oil pipe.

[0018] An application of a hydraulic C-type brake device used on a bicycle is as follows: It includes a front wheel brake and a rear wheel brake. Each brake device comprises a brake body and a handlebar. The handlebar of the front wheel brake has an oil pipe I at its inlet and outlet ports, and a one-way valve I is installed on oil pipe I. The brake body of the front wheel brake has an oil pipe III at its brake cylinder port. The handlebar of the rear wheel brake has an oil pipe II at its inlet and outlet ports, and a one-way valve II is installed on oil pipe II. The brake body of the rear wheel brake has an oil pipe IV at its brake cylinder port. Oil pipes I, II, III, and IV are connected by a four-way valve.

[0019] In summary, the beneficial effects of this utility model are:

[0020] Firstly, because this invention uses an oil pipe connection mode and does not have a cable structure, it maintains the feel of disc brakes while avoiding the defects of rim brakes.

[0021] Furthermore, the brake structure of this utility model adopts scissor force and single-sided connection to achieve synchronous tightening of brakes on both sides, resulting in more stable braking performance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall grip provided by an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the brake body provided in this embodiment of the utility model;

[0025] Figure 3 This is a utility model Figure 1 A schematic diagram of the brake lever in orthographic projection;

[0026] Figure 4 This is a utility model Figure 3 Sectional view AA;

[0027] Figure 5 This is a utility model Figure 1 A schematic diagram of the universal joint bolt, ball head screw, and piston mechanism;

[0028] Figure 6 This is a utility model Figure 5 Detailed structural diagram of universal joint bolts and ball head screws, etc.;

[0029] Figure 7 This is a utility model Figure 5 Detailed structural diagram of the piston and other mechanisms;

[0030] Figure 8 This is a utility model Figure 2 Left brake indication Figure I ;

[0031] Figure 9 This is a utility model Figure 2 Left brake indication Figure II ;

[0032] Figure 10 This is a utility model Figure 2 Right brake indicator Figure I ;

[0033] Figure 11 It is a utility model Figure 2 Right brake indicator Figure II ;

[0034] Figure 12 It is a utility model Figure 2 , Figure 8 , Figure 9 , Figure 10 , Figure 11 A schematic diagram of the piston, piston rod, and other mechanisms in the process;

[0035] Figure 13 yes Figure 12 A schematic diagram of the brake hinge shaft. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] Example 1 Figure 1-13 A hydraulic brake body, a grip, and a braking device thereof are provided, including a grip 1 and a brake body 2.

[0038] The grip 1 settings are as follows:

[0039] The grip 1 includes a brake lever 11, a lever cylinder 12, and a handlebar fixing member 13. The lower end of the lever cylinder 12 is fixed to the handlebar fixing member 13, which is used to fix the handlebar. Its structure is a conventional structure.

[0040] The handle cylinder 12 has an open-top cylindrical cavity 120 (oil storage space). A handle piston 122 is housed within the cylindrical cavity 120. A handle piston rod 124 is located at the upper end of the handle piston 122. The handle piston rod 124 is hinged to the brake lever 11 (the handle piston rod 124 is hinged to the brake lever 11 at the middle or near the proximal end of the middle). Figure 1 Or as shown in Figure 4.

[0041] The handle piston rod 124 and the handle piston 122 are actually connected by a universal joint, such as... Figure 5 , 6As shown in Figure 7, in this embodiment, the handle piston rod 124 is a ball head bolt (which can be obtained commercially). A spherical groove 1220 (open at one end) is provided at the upper end of the handle piston 122 to accommodate the ball head bolt 1240, relative to the lower end ball 1240 of the ball head bolt. The ball head bolt 1240 is inserted into the open side of the spherical groove 1220. The upper end of the handle piston rod 124 is hinged to the brake handle 11 via a brake handle hinge shaft I111. A threaded hole I1110 with internal threads is provided on the brake handle hinge shaft I111, relative to the external thread at the upper end of the ball head bolt. The threaded hole I1110 extends laterally through the brake handle hinge shaft I111. Through this threaded connection, the length of the handle piston rod 124 (ball head bolt) can be easily adjusted, thereby improving the feel of the grip 1. Depending on the braking feel, the handle piston rod 124 and the brake handle 11 can be hinged at the middle or near the proximal end of the brake handle 11. Generally, the closer the hinge is to the proximal end, the lighter the feel.

[0042] An elastic body 123 is provided below the handle piston 122, as shown in 4, 5, and 7. In this embodiment, the elastic body 123 is a spring. Specifically, a protrusion can be provided below the handle piston 122, and then the spring (elastic body 123) can be fitted onto it.

[0043] Furthermore, such as Figure 1 or Figure 4 As shown, the proximal end of the brake lever 11 is hinged to the lever cylinder 12 via the brake lever hinge shaft II 112. Using this hinge point, the brake lever 11 can apply pressure to the hand piston rod 124.

[0044] An oil inlet / outlet 121 is provided on the side of the handle cylinder 12. The oil inlet / outlet 121 passes through the side wall of the handle cylinder 12 and connects to the cylindrical cavity 120 inside the handle cylinder 12.

[0045] In the above configuration, the handle piston 122 is made of rubber to prevent leakage.

[0046] The brake body 2 is configured as follows:

[0047] Brake body 2 includes a left brake 22 and a right brake 21. The lower ends of the left brake 22 and the right brake 21 (generally the leftmost end of the left brake 22 and the rightmost end of the right brake 21, such as...) Figure 2As shown, brake pads 27 are fixed to each other by brake pad fixing bolts 26 (this is prior art). The left brake 22 has a left brake connection hole 32 at the right end (end position), and the right brake 21 has a right brake connection hole 31 at the left end (end position). The left brake 22 and the right brake 21 are hinged together by fixing bolts 29 through the left brake connection hole 32 and the right brake connection hole 31. Fixing bolts 24 are provided on fixing bolts 29 to prevent the left brake 22 and the right brake 21 from falling off each other.

[0048] The brake body 2 is fixed to the frame (such as a bicycle or electric bicycle) by fixing bolts 29 (i.e., frame retainer), and is composed of a left brake 22 and a right brake 21 to form a C-shaped structure.

[0049] The left brake 22 has a brake cylinder 220 (e.g., Figure 8 or Figure 9 As shown), the brake cylinder 220 has an open-top cylindrical cavity 120, within which a brake piston 223 is located. The upper end of the brake piston 223 has a brake piston rod 224. Figure 12 As shown, the brake piston 223 and the brake piston rod 224 can be fixed by a rigid connection.

[0050] An extension section 30 is provided at the top left side of the right brake 21, such as... Figure 10 Or, as shown in Figure 11, the extension section 30 is located at the left end of the right brake connection hole 31, and an extension section connection hole 33 is provided in the extension section 30, such as... Figure 11 or Figure 12 As shown.

[0051] The upper end of the brake piston rod 224 is hinged to the extension 30 of the right brake 21, as shown in the specific configuration. Figure 2 As shown, the upper end of the brake piston rod 224 is hinged to the extension section 30 of the right brake 21 via a brake hinge shaft 28 (the brake hinge shaft 28 is fitted into the extension section connection hole 33). The structure of the brake hinge shaft 28 is as follows: Figure 13 As shown, its structure is actually the same as that of the brake handle hinge shaft I111, that is, a screw hole II280 is provided on the brake hinge shaft 28.

[0052] The upper outer wall of the brake piston rod 224 has an external thread relative to the internal thread in the threaded hole II 280. The upper end of the brake piston rod 224 is rigidly connected to the threaded hole II 280 via the thread. Furthermore, an adjusting bolt 23 is installed on the part of the upper end of the brake piston rod 224 that extends out of the threaded hole II 280. Figure 8-12 As shown, the length of the brake piston rod 224 can be effectively adjusted by adjusting the bolt 23, thereby indirectly adjusting the braking distance of the C-shaped opening formed by the left brake 22 and the right brake 21.

[0053] An oil inlet and outlet port is provided on the outer wall of the brake cylinder 220, and the arrangement of the oil inlet and outlet port is as follows: Figure 8 or Figure 9 As shown, an oil inlet bolt 222 (which is commercially available) passes through the outer wall of the brake cylinder 220 and connects to the cylindrical cavity 120 inside. A gourd head 221 (i.e., a gourd-shaped oil pipe connector, hollow inside, which can be fitted onto the oil inlet bolt 222 and whose hollow part connects to the oil passage of the oil inlet bolt 222) is fitted on the oil inlet bolt 222. The gourd head 221 connects the oil inlet and outlet channels of the oil inlet bolt 222.

[0054] An elastic body II 25 is fitted onto the fixing bolt 29. In this embodiment, the elastic body II 25 is a torsion spring. One end of the torsion spring (elastic body II 25) is locked onto the left brake 22, and the other end is locked onto the right brake 21, ensuring that the left brake 22 and the right brake 21 remain in an open state.

[0055] The arrangement between the grip 1 and the brake body 2 is as follows:

[0056] The oil inlet / outlet 121 and the gourd head 221 are connected by an oil pipe.

[0057] The actual steps used in this embodiment are as follows (oil is stored in the handle cylinder 12, but not in the brake cylinder 220; if necessary, oil can also be stored in the oil pipe):

[0058] 1. Squeeze the brake lever 11 firmly. The brake lever 11 rotates based on the brake lever hinge shaft II 112. At this time, the brake lever 11 compresses the handle piston rod 124 based on the brake lever hinge shaft I 111. The handle piston rod 124 pushes the handle piston 122 downward along the cylindrical cavity 120 in the handle cylinder 12. The oil flows into the brake cylinder 220 through the oil inlet / outlet 121, oil pipe, hoist head 221, and oil inlet bolt 222.

[0059] During this step, the spring deforms (compresses).

[0060] 2. The oil in the brake cylinder 220 pushes the brake piston 223 upward through pressure, and at the same time lifts the brake piston rod 224. The brake piston rod 224 lifts the extension section 30, and the right brake 21 moves clockwise around the fixing bolt 29.

[0061] At the same time, the brake cylinder 220 is subjected to the reverse force of the oil, which pushes the left brake 22 to move counterclockwise around the fixing bolt 29;

[0062] The elastic body II 25 (torsion spring) deforms (compresses), and the two brake pads 27 complete the clamping action.

[0063] 3. Release the brake lever 11, the spring returns to its original shape, and the lever piston 122 resets;

[0064] At the same time, the oil in the brake cylinder 220 flows back to the handle cylinder 12 through the oil pipe;

[0065] At the same time, the elastic body II 25 (torsion spring) returns to its original shape, causing the right brake 21 to move counterclockwise around the fixing bolt 29 and the left brake 22 to move clockwise around the fixing bolt 29.

[0066] The two brake pads 27 complete the release action.

[0067] Example 2: Based on Example 1, this product is applied to a bicycle, with the following settings:

[0068] The handle cylinder 12 of the front wheel brake device has an oil pipe I installed on its inlet / outlet port 121, and a one-way valve I is installed on the oil pipe I; the brake cylinder 220 of the brake body of the front wheel brake device has an oil pipe III installed on its oil port; the handle cylinder 12 of the rear wheel brake device has an oil pipe II installed on its inlet / outlet port 121, and a one-way valve II is installed on the oil pipe II; the brake cylinder 220 of the brake body of the rear wheel brake device has an oil pipe IV installed on its oil port; the oil pipes I, II, III and IV are connected by a four-way valve.

[0069] Based on the feel and frequency of use of the front and rear brakes, the hydraulic pressure in the front wheel lever cylinder 12 and the rear wheel lever cylinder 12 is adjusted by one-way valve I and one-way valve II respectively. Then, by adjusting the valve of the four-way valve, precise control of the brake feel can be achieved.

[0070] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included in this utility model.

[0071] Within the scope of the new protection.

Claims

1. A hydraulically based brake body, comprising a brake body (2), the brake body (2) comprising a left brake (22) and a right brake (21), wherein both the left brake (22) and the right brake (21) are fixed with brake pads (27) by brake pad fixing bolts (26), characterized in that, The left brake (22) and the right brake (21) are hinged to each other; The left brake (22) is provided with a brake cylinder (220), and the brake cylinder (220) is provided with a brake piston rod (224) with a brake piston (223). The upper end of the brake piston rod (224) is hinged to the right brake (21). The brake cylinder (220) is provided with an oil port.

2. An oil pressure based brake body as claimed in claim 1, wherein, The rightmost end of the left brake (22) is hinged to the leftmost end of the right brake (21); The left side of the leftmost hinge point of the right brake (21) is provided with an extension section (30). The upper end of the brake piston rod (224) is hinged to the extension (30) of the right brake (21).

3. An oil pressure based brake body as claimed in claim 2, wherein, The upper end of the brake piston rod (224) is hinged to the extension section (30) via the brake hinge shaft (28); The brake piston rod (224) is fixedly connected to the brake hinge shaft (28).

4. An oil pressure based brake body according to claim 3, wherein The brake piston rod (224) and the brake hinge shaft (28) are fixedly connected by threads; The upper end of the brake piston rod (224) passes through the brake hinge shaft (28) and is provided with an adjusting bolt (23).

5. The oil pressure based brake body of claim 1, wherein, The brake cylinder (220) is provided with an oil inlet bolt (222) on its oil port, and a gourd head (221) is provided on the oil inlet bolt (222).

6. An oil pressure based brake body as claimed in claim 1, wherein, The left brake (22) and the right brake (21) are hinged by a fixing bolt (29); The threaded section of the fixing bolt (29) is a frame retainer.

7. An oil pressure based brake body according to any one of claims 1 to 6, characterized in that, An elastomer II (25) is provided between the left brake (22) and the right brake (21).

8. An oil pressure based handle comprising a handle (1) comprising a brake handle (11) and a handle fixing member (13), characterized in that, A handle cylinder (12) is provided between the brake lever (11) and the handlebar fixing member (13). The proximal end of the brake lever (11) is hinged to the lever cylinder (12); The handle cylinder (12) is provided with a handle piston (122), and the upper end of the handle piston (122) is provided with a handle piston rod (124) which is hinged to the brake handle (11); The handle cylinder (12) is provided with an oil inlet and outlet (121).

9. An oil pressure based grip as claimed in claim 8, characterized in that The hand piston rod (124) and the handle piston (122) are connected by a universal joint mechanism; An elastomer (123) is provided at the lower end of the handle piston (122).

10. An oil pressure-based brake device characterized by comprising: Includes the brake body of claim 1 or the grip of claim 8; The oil port of the brake body is connected to the oil inlet and outlet (121) by an oil pipe.

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